Mitosis - Meiosis Lecture

Open Ended

How does differentiation contribute to the formation of tissues and organs in a developing organism?

Multiple Choice

Why is cell division through mitosis important in the development of a multicellular organism?

• It allows for the creation of genetically identical cells needed for growth and repair.

• It helps produce gametes for reproduction.

• It causes cells to become specialized immediately.

• It prevents any changes in cell structure or function.

Multiple Choice

Which stage immediately follows fertilization in the development of a human embryo?

• Zygote

• Morula

• Blastocyst

• Implanted Blastocyst

Open Ended

Explain the difference between embryonic stem cells and adult stem cells, and discuss their potential uses in medicine.

Multiple Choice

Which of the following correctly lists the levels of biological organization from smallest to largest?

• Atom, Molecule, Cell, Tissue, Organ, Organ System, Organism

• Molecule, Atom, Cell, Tissue, Organ, Organ System, Organism

• Cell, Atom, Molecule, Tissue, Organ, Organ System, Organism

• Tissue, Cell, Molecule, Atom, Organ, Organ System, Organism

Open Ended

Describe what happens during the S phase of interphase in the cell cycle.

Open Ended

Explain the significance of the S phase in the cell cycle and how it affects the chromosome number in a cell.

Multiple Choice

During which phase of the cell cycle does one cell become two identical daughter cells?

• S phase

• Prophase

• Mitosis

• Cytokinesis

Multiple Choice

Which of the following events occur during prophase of mitosis?

• Chromosomes condense and become visible as sister chromatids

• Spindle fibers connect to the centromeres

• Chromosomes line up in the middle of the cell

• The cell divides into two daughter cells

Open Ended

Describe the sequence of events that occur from prophase to cytokinesis during mitosis.

Multiple Choice

During which phase of the cell cycle do sister chromatids separate and move to opposite ends of the cell?

• Anaphase

• Telophase

• Metaphase

• Prophase

Multiple Select

Which of the following statements about cytokinesis in plant and animal cells are correct?

• In plant cells, a cell plate forms and develops into a membrane.

• In animal cells, a cleavage furrow pinches the cell into two parts.

• Cytokinesis results in two identical body cells.

• In animal cells, a cell plate forms between nuclei.

Open Ended

Explain why maintaining a high surface area to volume ratio is important for cell growth and repair.

Multiple Select

Which of the following are examples of external signals that regulate the cell cycle?

• Hormones

• Nutrients

• DNA inside the cell

• Temperature

Multiple Choice

What is apoptosis and what is one example of its role during human development?

• Programmed cell death; it helps form webbed fingers and toes during development

• Uncontrolled cell growth; it causes cancer

• Cell division; it produces new cells for growth

• Cell differentiation; it creates specialized cells

Multiple Select

Which of the following statements about diploid and haploid cells is/are correct?

• Diploid cells have two full sets of chromosomes, one from each parent.

• Haploid cells have only one set of chromosomes.

• Somatic cells are haploid, and gametes are diploid.

• In humans, diploid cells have 46 chromosomes and haploid cells have 23 chromosomes.

Open Ended

Explain the difference between somatic cells and gametes, including their chromosome numbers and examples of each.

Open Ended

What is a karyotype and what information can it provide about an individual?

Multiple Choice

Arrange the following biological events in the correct order: fertilization, copulation, pregnancy, babies.

• Copulation → Fertilization → Pregnancy → Babies

• Babies → Pregnancy → Fertilization → Copulation

• Pregnancy → Babies → Copulation → Fertilization

• Fertilization → Copulation → Pregnancy → Babies

Open Ended

Reflecting on what you learned today, what questions do you still have about the process of cell division and differentiation?

Multiple Choice

How does cell division through mitosis contribute to the development of a multicellular organism from a fertilized egg?

• It creates genetically identical cells that can differentiate into specialized tissues and organs.

• It produces cells with half the genetic material, leading to genetic diversity.

• It immediately forms fully developed organs from the zygote.

• It prevents any further cell differentiation after the zygote stage.